Windows/Xbox Convergence Coming?

ZDNet has a speculative article based on tips from anonymous contacts
talking about Microsoft's future plans to converge the Windows desktop, Windows
mobile, and Xbox operating systems (thanks nin via
Joystiq). They say the plan is to roll out an update codenamed "Threshold"
in Spring 2015 that will bring the three systems closer in line. Microsoft has
refused to comment on their report, calling it "rumors and speculation," but
here is what they say MS has up its corporate sleeve:

But Threshold will add another level of commonality across Microsoft's various
Windows-based platforms, sources said. With the Threshold wave, Microsoft plans
to support the same core set of "high value activities" across platforms. These
high-value activities include expression/documents (Office, and the coming
"Remix" digital storytelling app, I'd think); decision making/task
completion (Bing, I'd assume); IT management (Intune and
Workplace
Join, perhaps?) and "serious fun."